how to fix store region error even if region is correct (not administrator added account)

Try going to http://commerce.microsoft.com to make sure your address information is correct. With region locked content, it's not the language that is the issue, but your actual
physical and account region. Both have to match in order to download region locked content.If that is all correct and it still won't work, try migrating your account region.

http://live.xbox.com/accountmigration For some reason on some accounts the 360 store will see you as being in a different region even if your account shows the right one so it'll give an error.

Hello, I hope you are well.

Please try these steps

If the "incorrect region" error persists even after verifying that the region is correct in your Microsoft account, there may be other issues to consider.

Steps to try to resolve:

1. Check account information:

Make sure that the region set in your Microsoft account (in Account Settings) is correct (Portugal).

Also check if the payment method is associated with the same region.

2. Update Windows:

Make sure that your Windows system is updated to the latest version, according to Microsoft support.

3. Check Microsoft Store:

Make sure that the Microsoft Store app is updated to the latest version.

correct however the paypal's account region must match the region of your xbox live account to be added

Goto billing.microsoft.com

A region cannot be changed once set

All the family accounts must be in the same region to be added

You will have to create a new account for the correct region if one isn't in the same region

HI I bought game in Denmark, my region is Denmark so how is possible that game is region locked.

To which region ? why i can bought i game not working in the region where was bought ?

It's best to create your own thread in order to receive proper assistance. The game is available in Denmark so as long as your account region matches your location you should have no issues with it. If you are getting the same error message as in the original
post or an error code like XBOS-3012, you'll want to go to
http://commerce.microsoft.com to make sure your account information is correct and try re-entering your information even if it is correct. If you still get the error, you'll want to try migrating your account region - https://support.xbox.com/my-account/microsoft-account/update-microsoft-account-country-region